hazard/opensha: finally uses input/logictree instead of java impl.
hazard/opensha: finally uses input/logictree instead of java impl.


Former-commit-id: 62d9f92dbf6fb94beb6280827e07ade4707d24cf
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine